systemlab.dk is a .dk domain served by 2 nameservers (randall.ns.cloudflare.com, zoe.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.22.107 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by blarke.net. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 104.21.22.107 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.204.97 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 300s | blarke.net | 193.181.212.191 | blarke.net | AS44803 Webdock.io ApS |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | systemlab.dk → 193.181.212.191 |
| 🔶 Autoconfig | systemlab.dk → 193.181.212.191 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3033::6815:166b | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3033::ac43:cc61 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.22.107,172.67.204.97 ech=AEX+DQBBDAAgACDDQV/WSRuB34JZvjFbd/WHePSieZAzobsH+XC0eMEYaAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:166b,2606:4700:3033::ac43:cc61 |
| TXT Record |
|---|
| v=spf1 mx:systemlab.dk ~all |
| Policy | Record (systemlab.dk) |
|---|---|
| ~all (soft fail) | v=spf1 mx:systemlab.dk ~all |
| Policy | Record (_dmarc.systemlab.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:info@blarke.net |
| www | 104.21.22.107 172.67.204.97 2606:4700:3033::6815:166b 2606:4700:3033::ac43:cc61 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network systemlab.dk: 104.21.22.107 172.67.204.97 2606:4700:3033::6815:166b 2606:4700:3033::ac43:cc61 (AS13335) www.systemlab.dk: 104.21.22.107 172.67.204.97 2606:4700:3033::6815:166b 2606:4700:3033::ac43:cc61 (AS13335) |
| Wildcard | Yes: any name under the zone resolves |
DNS lookups: 1/10 · policy: ~all
No problems found| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.systemlab.dk | systemlab.dk |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2415646219 |
| Primary NS (MNAME) | randall.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-02 17:58:41 | 1084ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-23 21:43:51 shown | 833ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-13 16:54:40 | 2542ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-04 12:57:03 | 879ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-27 13:09:32 | 803ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-26 11:40:55 | 852ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-25 05:49:18 | 2722ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-09 13:20:37 | 1517ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-30 17:40:42 | 1962ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-19 15:07:36 | 1190ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-08 20:27:59 | 17095ms | 2 NS 2 A 1 MX | ❓ Unknown |
| 2026-06-30 06:37:06 | 1204ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-26 04:34:32 | 936ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-20 04:20:08 | 2822ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 16:07:41 | 3947ms | 2 NS 1 A 1 MX | 🔓 Insecure |